README

Factur-X is a Franco-German e-invoicing standard which complies with the European e-invoicing standard EN 16931. The Factur-X specifications are available on the FNFE-MPE website in English and French. The Factur-X standard is also called ZUGFeRD in Germany.

This library enable you to manage your Factur-X PDF invoices files :

• Generate Factur-X PDF invoice from regular PDF invoice and Factur-X XML file
  • Using setasign\Fpdi
• Extract Factur-X XML from Factur-X PDF invoice
  • Using Smalot\PdfParser
• Validate Factur-X XML against the official Factur-X XML Schema Definition
  • Using PHP native libxml functions

Table of contents:

• Requirements
• Installation
• Usage
• License
• Changelog
• Contributing

Requirements

• PHP 7.4+
• Composer
• FPDI (MIT License)
• Smalot (LGPL License)

Installation

Install with Composer

composer require atgp/factur-x

Usage

You can see the code from test page from "tests" directory, also here some simple examples of implementation :

<?php
// Include or autoload (with Composer) all library classes

// Generates Factur-X PDF invoice from PDF and Factur-X XML
$writer = new \Atgp\FacturX\Writer();
$facturxPdf = $writer->generate($pdf, $facturxXml);

// Extracts Factur-X XML
$reader = new \Atgp\FacturX\Reader();
$facturxXml = $reader->extractXML($facturxPdf);

// Validates Factur-X XML against official Factur-X XML Schema Definition 
$validator = new \Atgp\FacturX\XsdValidator();
if (false === ($isValid = $validator->validate($facturxXml)) {
    var_dump($validator->getErrors());
}
// ... or throw exceptions if error(s) are occurred
$validator->validateWithException($facturxXml);

More options are available, look at source code for more information.

License

This project is licensed under MIT License

Changelog

• v2.4.1 : 2025-11-18
  • (reader) Remove backtrace from thrown exception message
• v2.4.0 : 2025-09-24
  • (validator) Upgrade Factur-x XSD to v1.07.3
• v2.3.1 : 2025-03-14
  • (writer) Fix binary content indicator in header
• v2.3.0 : 2024-12-11
  • (ci) Add Github CI : php-stan for PHP versions between 7.4 and 8.4
• v2.2.1 : 2024-10-28
  • (reader) Clarify reader extraction method
• v2.2.0 : 2024-10-28
  • (validator) Upgrade Factur-x XSD to v1.0.7
• v2.1.0 : 2024-02-26
  • (reader) Allow to configure Smalot pdf parser
• v2.0.0 [BC] : 2023-11-06
  • Requires php 7.4+
  • Refactor classes to clarify uses
  • Simplify requirements for "smalot/pdfparser"
  • Import external links on generated factur-x pdf
• v1.1.0 : 2019-01-09
  • Upgrade Factur-x xsd to v1.0.06
  • Fix PDF-A compliance regarding endobj and ICC profile
• v1.0.0 : 2019-01-09
  • Requires php 5.6+
  • First version of the library to read, check and write factur-x documents